Combining/reusing forms from different modules
Hi
What is the best way of combining forms in Drupal 6? For example, if I have a page comprising of:
+----------------------
| Field X
| Field Y
+----------------------
| 'user_register'
+----------------------
| Field Z
+----------------------How would I go about inserting the core user_register module into that page, and how would I control validation/submission?
To date I've managed to use $form['user-register']['#value'] = drupal_get_form('user_register') but I'm having a lot of trouble with a) making some minor alterations to that original user_register form (using hook_form_alter) and b) controlling the validation and submission of the entire page.
I'm struggling to see any decent reading material on how to reuse existing forms - is this not a core principle of Drupal? It would be a ball ache to recode each form from scratch each time you want to use it as part of another form!
Thanks
I'd be interested as well.
I'd be interested as well. For the moment I am experimenting with '#after_build'. I let you know when I find out anything of use. Problems I have identified so far:
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Got it
I found a solution.
The solution is not tested with ajax, neither is it tested with forms that do fancy stuff. FYI: cck does fancy stuff, but I've got a hack.
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Interesting
I think your needs were a little different to mine based on your solution.
My resolution was something akin to:
* In hook_menu: define a path to load the 'user_register' form.
* In hook_alter: Check the path of the module, and if it's relevant, continue to alter it - otherwise leave it be.
I've now got three seperate registration forms - each serving a different purpose but each sharing a common form parent and overriding it as appropriate. You need to be careful with module weights and ensure your validate + submit handlers work correctly with the core form's functionality. Other than that you should be able to alter the form to your heart's content...